BACKGROUND: The New York Heart Association (NYHA) functional class is a subjective
estimate of a patient's functional ability based on symptoms that do not always correlate with …

The assessment of functional capacity reflects the ability to perform activities of daily living
that require sustained aerobic metabolism. The integrated efforts and health of the …

Introduction Diminished exercise capacity is a key symptom in heart failure (HF). Exercise
predictors (peak VO 2, VE/VCO 2 slope, and oxygen uptake efficiency slope [OUES]) are …

Abstract Because the New York Heart Association (NYHA) classification system categorizes
patients based on a subjective impression of the degree of functional compromise, a …

BACKGROUND: A wide variety of instruments have been used to assess the functional
capabilities and health status of patients with chronic heart failure (HF), but it is not known …

Objectives. This study sought to investigate the clinical characteristics of patients with
chronic heart failure and an increased ventilatory response to exercise and to examine the …

Abstract Aims The New York Heart Association (NYHA) classification is frequently used in
the management of heart failure but may be limited by patient and physician subjectivity …

Maximal oxygen consumption (VO2max) and ventilatory anaerobic threshold (VAT) obtained
during cardiopulmonary exercise testing have been shown to be valid and reproducible in …

Exercise testing is often performed in persons with cardiac disease to measure their
functional capacity. Physical activity questionnaires assessing functional capacity have been …

BACKGROUND: More than three fourths of patients with heart failure (HF) are 65 years and
older, and older age is associated with worse symptoms and prognoses than is younger …